Include x_forwarded in workers example configs (#14667)

docs/systemd-with-workers/workers/event_persister.yaml

@@ -17,6 +17,7 @@ worker_listeners:
   #
   #- type: http
   #  port: 8035
+  #  x_forwarded: true
   #  resources:
   #    - names: [client]
 

docs/systemd-with-workers/workers/generic_worker.yaml

@@ -5,11 +5,10 @@ worker_name: generic_worker1
 worker_replication_host: 127.0.0.1
 worker_replication_http_port: 9093
 
-worker_main_http_uri: http://localhost:8008/
-
 worker_listeners:
   - type: http
     port: 8083
+    x_forwarded: true
     resources:
       - names: [client, federation]
 

docs/systemd-with-workers/workers/media_worker.yaml

@@ -8,6 +8,7 @@ worker_replication_http_port: 9093
 worker_listeners:
   - type: http
     port: 8085
+    x_forwarded: true
     resources:
       - names: [media]